Mixer



G. W. YODER Nov. 7, 1933.

MIXER Filed March 5, 1932 3 Sheets-Sheet 1 G. W. YODER Nov. 7, 1933.

MIXER 3 Sheets-Sheet 2 George Wfadev Filed March 5. 1932 Nov. 7, 1933. wYQDER 1,933,648

MIXER Filed March 5, 1932 3 Sheets-Sheet 3 Patented Nov. 7, 1933 UNITEDSTATES MIXER George Yoder, St. Marys, Mo., assignor 0f fifty-one percent to Elizabeth Yoder, St.

Marys, Mo.

Application March 5, 1932. Serial No. 597,049

6 Claims.

The device forming the subject matter of this application is anattachment for internal combustion engines, and the invention aims toprovide a novel means for affording a supply of heated air, supplementalto the mixture of air and fuel which passes through the carburetor,novel means being provided for mingling the auxiliary air and themixture from the carbu retor, to produce a fuel for the engine whichwill result in an increase in the mileage per gallon, and, in generahagreatly improved operation in the engine.

With the above and other objects in view, which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed, may be made within thescope of what is claimed, without departing from the spirit of theinvention.

In the accompanying drawings:--

Fig. 1 shows in top plan, a portion of an in-- ternal combustion engineequipped with the de-' vice forming the subject matter of thisapplication;

Fig. 2 is a side elevation of the engine with the attachment appliedthereto;

Fig. 3 is a longitudinal section of the mixing mechanism;

Fig. 4 is a transverse section on the line 4-4 of Fig. 3;

Fig. 5 is an edge View of the breaker;

Fig. 6 is an edge View of the discharge member.

Referring especially to Figs. 1 and 2, the numeral 1 marks an internalcombustion engine having an intake manifold 2' and an exhaust manifold3. A pulley 4 is mounted on the fan shaft of the engine.

An air heater 5 extends along theside of the exhaust manifold 3, and issecured thereto, or to any accessible part of the engine, theconstruction being such that the air proceeding through the heater 5will be heated from the exhaust manifold 3; On the intake end of theheater 5, there isan air strainer or filter 6, of any desiredconstruction. A choke valve 7 is mounted in the heater 5, closelyadjacent to the air strainer 6, and is operated by any suitablemechanism indicated by the numeral 8. The forward end of the heater 5has a return bend, shown at 9 in Fig. 2. At the rear end of the returnbend 9, the sameis connected to a conduit 10 which extends upwardly andforwardly, as shown in Fig. 2. The conduit 10 is united to a connection11,

which appears best in Fig. 2. In the reduced lower end of the connection11- there is a butter-.- fly valve 15 (Fig. 2), the shaft of which ismarked by the numeral 16, the shaft carrying an arm 17, which, as shownin Fig. 1, is pivoted to an operating member 18 extended rearwardly intothe car whereon the internal combustion engine 1 is mounted.

The lower end of the connection 11 is joined to a tubular housing 19, asshown in Figs. 2 and 3, the connection communicating with a cylindricalchamber 21 in the housing, the housing being carried on the engine frameby meansof a bracket 20, or otherwise.

It can be seen in Fig. 3 that in the forward end of the housing 19, ananti-friction bearing 22 is mounted. In this bearing, and in the forwardend of the housing, a shaft 23 is journaled for rotation. On the outerend of'the shaft 23 there is a pulley 24 connected by a belt 25 with thepulley 4 on the fan shaft of the engine. Packings 26 may be employedwherever desired. The shaft 23 has a bearing, intermediate its ends, inthe intermediate portion of the housing 19, in ad- Vance of the chamber21. r

A sleeve 27 is keyed to the shaft 23, within the chamber 21, and has ashoulder 28, shown in Fig. 3. The sleeve 27 is surrounded by a pluralityof rings 29, having abutment against the shoulder 28, the rings 29 beingheld together by any desired number of securing elements 31. Fig. 5shows that the rings 29 have outwardly extended blades 32, which have aninclination, circumferentially of the, rings whereon they are mounted.The blades 32 are thin and resilient, and they vibrate, as the shaft 23rotates. Noting the places at whichthe numeral 33 is applied in Fig. 3,it will be observed that the periphery of the blades 32 is slightlyeccentric with respect to the axis of rotationof the shaft 23. They are,therefore, slightly eccentric, at their outer end, with respect to thecylindrical wall of the charm ber 21.

The rings 29 and their blades 32 constitute an admission rotor, whichhas an important function in agitating the mixture and in securing theadvance thereof toward thebreaker, which will now be described. i

The breaker disk at is securedto the shaft 23 and is located in thechamber 21 immediately to the rear of the admission rotor. disk 34 hastransverse openings 35 therethrough, the said openings being locatedadjacent to the periphery of the breaker disk. The openings 35preferably are of cylindrical form, but they are The breaker J chargedinto the connection 11.

funnel-shaped at their ends, as designated by the numeral 36. Slits 3'7are formed in the periphery of the breaker disk 34. The slits 37intersect the openings of the breaker disk. The inner edges of the slits37 slant inwardly and forwardly, as shown at 33 in Fig. 3.

Immediately in front of the breaker disk 34, a discharge member 39 issecured to the shaft 23, and. is held in place by a nut 40 on the saidshaft. In its periphery, the discharge member 39 has a plurality ofslots 41 defining blades 104, which are inclined circumferentially ofthe discharge member. breaker disk 34 are inclined inwardly andrearwardly, as designated by the numeral 42 in Fig. 3.

Immediately behind the breaker disk 34, the tubular housing 19 has atapered end 43, in which a nozzle 44 is removably mounted, the bore ofthe nozzle 44 being reduced intermediate its ends, as designated by thenumeral 45. The nozzle 44 is removable, and may be replaced by anothernozzle having a passage differing in cross section from the passageshown, to vary the speed at which the mixture leaves the tapered end 43of the housing 19.

The nozzle 44 is held in place by a foot plate 46 on a conduit 47 whichcommunicates with the intake manifold 2.

A pipe 48 leads rearwardly from the radiator 7 (not shown) of theinternal combustion engine,

and is connected to a valve casing 49, which may be mounted on theintake manifold 2 or elsewhere. The valve shaft of the casing 49 isdesignated by the numeral 50 and has an arm 51, shown in Fig. 2, andadapted to be connected to the spark lever (not shown) of the engine.

valve 15 of Fig. 2.

As to the general operation of the device, it will be-understood thatthe supplemental air enters the heater 5 through the strainer 6. As theair moves through the heater 5, the temperature of J the air is raised.because the heater 5 is close enough to the exhaust manifold 3 toaccomplish this result. The air follows the return bend 9 (Fig. 2) ofthe heater and moves into the conduit 10. From the conduit 10, theheated air is dis.

Here the auxiliary air encounters the mixture of fuel and air which thecarburetor 52 has produced. In the connection 11, an initial mixing ofthe heated auxilliary air and the products from the carburetor 52 takesplace, and the air passing through the conduit 10 tends to draw themixture from the carburetor.

From the connection 11, and under the control of the butterfly valve 15,the mixture proceeds to j the chamber 21 of the housing 19, shown inFig. 3.

blades 32, is rotated rapidly, the breaker disk 34 is rotated rapidlyand rapid rotation is imparted to the discharge member 39.

The blades 32 of the admission rotor, owing to The lower walls of theslots 41 in thetheir inclination circumferentially of the shaft 23, tendto advance the mixture. Because the lades 32 are thin, resilient andvibratory, they have an important effect in securing homogeneity of themixture. A thorough mingling, moreover, is brought about, because theouter ends of the blades 32 are not in a circle represented by the innerwall of the chamber 21, but are slightly eccentric thereto, as shown at33.

From the admission rotor, the mixture proceeds through the openings 35of the breaker disk. Owing to the specific shape of these openings, andto the specific shape of the slits 37, shown at 38, the mixture isfurther and thoroughly broken up, and this breaking up is enhanced, byreason of the fact that, as shown in Fig. 4, the breaker disk 34 has aslight eccentricity with respect to the wall of the chamber 21, as doesthe admission rotor 32.

The mixture now passes to the discharge member 39, the blades 154 ofwhich feedthe mixture into the tapered end 43 of the tubular housing 19,the speed of the mixture being increased, owing to the presence of thetapered end 43 of the housing. The speed with which the mixture proceedsis enhanced, further, because the nozzle 44 is provided with the reducedopening 45, and,

as has been stated hereinbefore, one nozzle may be taken out and anothernozzle substituted therefor, in order to regulate the speed with whichthe mixture passes into the conduit 47. From the conduit 47, the mixturemoves into the intake manifold 2, and the engine is provided with a fuelmixture which is finely divided, homogeneous, and thoroughly mingled,the temperature of this mixture being raised, owing to the presence ofthe heater 5, through which the auxiliary supply of air has passed.

If the operator desires that the intake manifold shall receive a supplyof moisture, this can be accomplished through the instrumentality of thepipe 48 which is connected. to the radiator (not shown) of the engine.The pipe 48 discharges into the valve casing 49, and the pipe 100, shownin Fig. 1, conducts the moisture from the valve casing 49 to the conduit4'7, and, therefore, to the intake manifold 2. It is not advisable tohave moisture delivered to the intake manifold 2 while the engine isidling, and this result can be accomplished by means of the arm 51 onthe valve shaft 50 of Fig. 2, it being recalled that the arm 51 isoperatively connected to the spark lever (not shown).

. When the engine is first started, it is often desirable not to have anauxiliary supply of air. The auxiliary supply of air can be cut off,wholly or to any desired extent, by closing the choke valve 7 of Fig. 1,through the instrumentality of the mechanism shown at 8 in Fig. 2 of thedrawings, and under the control of an operator.

It is to be observed that the carburetor 52 is connected to thebutterfly valve 15 of Fig. 2 for movement in synchronism therewith bythe mechanism shown at 91 and by the shaft 16 which carries thebutterfly valve 15 of Fig. 2. The supply of heated air, therefore, isregulated in accordance with the richness of the mixture proceeding fromthe carburetor.

Generally stated, the device embodies a means for providing a heatedsupply of auxiliary air, at

the will of'an operator, and this heated supply of auxiliary air'ismingled with the mixture of air and fuel proceeding from the carburetor.The combined mixture moves on to the mechanism shown in Fig. 3,. whereinthe various steps of feeding, breaking up and mingling the mixture takeplace, as hereinbefore described, the mixture passing on to the intakemanifold 2, ordinarily moistened by the vapor from the radiatorproceeding through the pipes 48 and 160 of Fig. 1, but without thatmoisture if, while the engine is idling, the valve mechanism in thevalve casing 49 is operated by the mechanism shown at 51 in Fig. 2.

Having thus described the invention, what is claimed. is:-

1. In a device of the class described, a tubular housing having an inletand an outlet, a shaft journaled in the housing, an admission rotorcarried by the shaft and located in the housing adjacent to the inlet,the admission rotor comprising outstanding, resilient, vibratory blades,the outer ends of which move in an orbit which is slightly eccentricwith respect to the inner surface of the housing, a discharge memberrotatable with the shaft and located in the housing adjacent to theoutlet, and a breaker carried by the shaft, within the housing anddisposed between the admission rotor and the discharge member.

2. In a device of the class described, a tubular housing having an inletand an outlet, a shaft journaled in the housing, an admission rotorcarried by the shaft and located in the housing adjacent to the inlet, adischarge member rotatable with the shaft and located in the housingadjacent to the outlet, and a breaker carried by the shaft, within thehousing and disposed between the admission rotor and the dischargemember, the breaker comprising a disk having transverse openingstherethrough, said openings being disposed adjacent to the periphery ofthe disk, and the disk having slits in its periphery, extended inwardlythrough the saidopenings.

3. In a device of the class described, a tubular housing having an inletand an outlet, a shaft journaled in the housing, an admission rotorcarried by the shaft and located in the housing adjacent to the inlet, adischarge member rotatable with the shaft and located in the housingadja cent to the outlet, and a breaker carried by the shaft, within thehousing, and disposed between the admission rotor and the dischargemember, the breaker being in the form of a disk having transverseopenings therethrough, said openings being disposed adjacent to theperiphery of the disk, the disk having inwardly extended slits whichintersect the openings, and the inner walls of the slits slantingdownwardly and inwardly toward the admission rotor.

having openings therethrough, said openings being located adjacent tothe periphery of the disk, the said openings having oppositely flaredends, and the disk having slits in its periphery, said slits beingextended inwardly through the openings, and the inner edges of the slitsslanting downwardly and inwardly toward the admission rotor.

5. In a device of the class described, a tubular housing having an inletand an outlet, a shaft journaled in the housing, an admission rotorcarried by the shaft and located in the housing, adjacent to the inlet,a discharge member rotatable with the shaft and located in the housingadjacent to the outlet, and a breaker carried by the shaft, within thehousing, and disposed between the admission rotor and the dischargemember, the breaker being provided with openings there through, locatedadjacent to the periphery of the breaker, the breaker having slitsextended inwardly from its periphery,-the slits intersecting theopenings, and the discharge member having slits in its periphery, theinner edges of the slits in the breaker slanting inwardly and toward theadmission rotor, and the inner edges of the slits of the dischargemember being inwardly inclined toward the outlet.

6. In a device of the class described, a tubular housing having an inletand an outlet, a shaft journaled in the housing, an admission rotorcarried by the shaft and located in the housing, adjacent to the inlet,a discharge member rotatable with the shaft and located in the housingadjacent to the outlet, and a breaker carried by the shaft, within thehousing, and disposed between the admission rotor and the dischargemember, the admission rotor comprising outwardly ex tended, resilient,vibratory blades the outer ends of which move in an orbit eccentric withrespect to the inner surface of the housing, the breaker havingtransverse openings therethrough, and the periphery of the breaker beingdisposed in eccentric relation with respect to the inner surface of thehousing.

GEORGE W. YODER.

